/* 
* @Author: 朱俊睿
* @Date:   2016-12-13 14:08:48
* @Last Modified by:   anchen
* @Last Modified time: 2016-12-13 14:09:49
*/
String.prototype.replaceAll  = function(s1,s2){   
    return this.replace(new RegExp(s1,"gm"),s2);   
}
String.prototype.trim=function(){ return this.replace(/(^\s*)|(\s*$)/g, "");}
